International Journal of Environmental Technology and Management (9 papers in press)

Regular Issues

• The relationship between the catchment area and water quality in the Upper Citarum River  
  by Rachmawati Sugihhartati Dj, Gina Salsabila 
  Abstract: Today, the water quality of the Indonesian Citarum River is deteriorating due to changes in land use within its catchment area. This study was conducted to assess the influence of land use on water quality in the rivers upstream zone at two sampling points. The analysis of six parameters was performed using spectrophotometric methods. The results showed potential patterns of increased land use for settlements, agriculture, forests, and plantations (a 22% increase in total) from the upstream to the downstream regions, which contributed to an increase in ammonia, nitrite ions, and hydrogen sulphide beyond levels that could harm humans. A water safety plan is the right tool to handle this by implementing control measures to manage the risks from catchment areas into the river water used as a drinking water source, ensuring that safe water is delivered to customers. These measures include water treatment, land use management, and water resource management.
  Keywords: Citarum River; water quality; catchment area; land uses; ammonia; nitrite; hydrogen sulfide; water safety plan; control measures; safe water.
  
  

Special Issue on: Novel Decision Technology Analytics for Evaluating Sustainable Strategies and Environmental Operations

• Urban public transport planning methods under low carbon emission constraints  
  by Suli Zhang, Yulin Jiao, Xinhua Wang 
  Abstract: In order to reduce the carbon emissions of urban public transportation systems and improve service efficiency and coverage, a low-carbon emission constrained urban public transportation planning method is proposed. Firstly, three objective functions were set: minimising carbon emissions, minimising average waiting time for passengers, and maximising service coverage, with corresponding constraints clearly defined. Subsequently, based on these objective functions, a city public transportation planning model was constructed and solved using particle swarm optimisation algorithm. To enhance the efficiency of the problem-solving process, a mechanism capable of adaptation was devised to dynamically modify the inertia weight and acceleration constants within the particle swarm optimisation algorithm. The outcomes of the experiments indicate that this approach effectively curtails the average waiting period for passengers to 2.34 minutes and attains a substantial service coverage rate when the peak air quality index (AQI) reading is 88, thereby substantiating the efficacy of the planning methodology.
  Keywords: low carbon emissions; urban public transportation; transportation planning; particle swarm optimisation algorithm; adaptive mechanism.
  
  
• An accurate prediction of environmental carrying capacity of tourist attractions under the coupling influence of multiple factors  
  by Jie Luo 
  Abstract: In order to overcome the problems of low coordination degree of multi-factor coupling, large deviation of prediction results and low subordinate degree of multi-factor coupling in traditional prediction methods, an accurate prediction method of environmental carrying capacity of tourist attractions under the coupling influence of multiple factors is proposed. The multi-factors influencing the environmental carrying capacity of tourist attractions are described by three elements, and the membership degree of multi-factors is calculated by fuzzy matter-element analysis. Determine the weight coefficient of the influencing factors, so as to build an accurate prediction model, and input the influencing factors into the model to get accurate prediction results. The experimental analysis has revealed that the utmost level of harmony exhibited in the integration of multiple factors through this approach can attain an exceptional 100% congruency, the prediction deviation rate of bearing capacity is 0.12%, and the membership degree of multi-factor coupling is high.
  Keywords: coupling influence of multiple factors; tourist attractions; environmental carrying capacity; weight coefficient.
  
  
• Carbon performance rating evaluation method for thermal power enterprises based on fuzzy-AHP  
  by Jing Zhang, Zhengyang Peng, Hui Li, Xin Wen 
  Abstract: The shortcomings of traditional data processing techniques, characterised by their inherent uncertainty and ambiguity, give rise to flawed assessments of thermal power companies carbon efficiency. Consequently, there is a pressing need for an innovative evaluation approach that leverages the fuzzy-AHP methodology. This method begins by scrutinising the essence of carbon performance metrics and the structural framework of thermal power businesses. It then proceeds to construct a comprehensive set of evaluation indicators for carbon performance. The fuzzy-AHP technique is employed to hierarchically organise the evaluation levels of carbon performance for thermal power enterprises. By integrating the weights of individual indicators and utilising a fuzzy evaluation matrix, this method calculates a cumulative carbon performance score, facilitating the comprehensive evaluation process. Experimental outcomes reveal that this method achieves an impressive accuracy rate of up to 98%, while simultaneously reducing the evaluation duration significantly.
  Keywords: fuzzy-AHP; thermal power enterprises; carbon performance; grade evaluation.
  
  
• Evaluation method of ecological carrying capacity of vegetation landscape in nature reserves based on improved analytic hierarchy process  
  by Jue Wu, Haibo Zhang, Qi Hu 
  Abstract: In order to accurately evaluate the ecological carrying capacity of vegetation landscape in nature reserves, improve the accuracy and efficiency of evaluation, a method for evaluating the ecological carrying capacity of vegetation landscape in nature reserves based on improved analytic hierarchy process is proposed. Principles for evaluating the ecological carrying capacity of vegetation landscape. Based on the Delphi method, select primary and secondary indicators to construct an evaluation index system for the ecological carrying capacity of vegetation landscape in nature reserves. Due to the insufficient ability of traditional methods to handle fuzzy information, fuzzy theory is adopted to improve the traditional analytic hierarchy process, determine weights, and combine fuzzy comprehensive evaluation factors to comprehensively evaluate the ecological carrying capacity of vegetation landscape in nature reserves. The experimental results show that the evaluation weight calculation accuracy of the proposed method reaches 99%, and the time taken is less than 8.35 seconds.
  Keywords: analytic hierarchy process; AHP; nature reserves; vegetation landscape; ecological carrying capacity.
  
  
• A method for urban and rural construction land layout planning based on GIS spatial analysis technology  
  by Weili Shen, Renhua Ge, Peng Jiao 
  Abstract: To enhance the efficiency of urban and rural land resource management, a strategy for the spatial arrangement of urban and rural construction land utilising GIS spatial analysis technology is introduced. Collect geospatial data and perform interpolation, cleaning, standardisation, and fusion processing on the data to improve its quality and usability. Subsequently, these refined datasets are fed into a BP neural network to forecast the future needs for urban and rural construction land. The forecasts are then integrated into GIS software, where a spatial analysis model is developed to analyse the data spatially. A regression model is employed to synthesise the outcomes of the spatial analysis, leading to the optimised layout planning of urban and rural construction land. The efficacy of this approach is validated through experiments, demonstrating its robust spatial complexity, adaptable land use, and overall sustainability, affirming the positive impact of this planning methodology.
  Keywords: GIS spatial analysis; urban and rural construction land; layout planning; BP neural network; spatial analysis model.
  
  
• Fire warning of lithium battery energy storage power stations for environmental sustainable development  
  by Dong Liang Deng, Xiong Chun Du 
  Abstract: To enhance the precision of fire alerts for energy storage power stations and reduce the response time, a fire warning approach tailored for sustainable environmental development in lithium battery energy storage power stations is introduced. This method focuses on fires within lithium battery energy storage power stations, gathering data via temperature, smoke, and CO gas sensors, and employs the D-S evidence theory to fuse this data, quantifying uncertainty and facilitating information integration. Fire trends are simulated using the sigmoid membership function, with parameters dynamically adjusted to accurately discern fire indicators. Sensors relay data in real-time to the central computer, which promptly issues a warning upon confirming a fire. Experimental results indicate that the fire warning accuracy of the method proposed herein peaks at 95.3%, with a response time of no more than two seconds.
  Keywords: sustainable development of the environment; lithium batteries; energy storage power station; fire warning.
  
  
• Evaluation of ecotourism environmental carrying capacity in nature reserves based on Improved Bayesian network  
  by Yukai Hu 
  Abstract: To address the discrepancies between the assessment outcomes and the true evaluation outcomes, long time-consuming and low satisfaction rate of the traditional evaluation methods, an evaluation method of ecotourism environmental carrying capacity in nature reserves based on improved Bayesian network was proposed. Taking the coastal wetland nature reserve as the research object, this paper analyses the impact factors of ecotourism environmental carrying capacity, and establishes the evaluation index system. The evaluation model of ecotourism environmental carrying capacity based on improved Bayesian network is established, and the evaluation index data is input into the model to obtain the evaluation results of ecotourism environmental carrying capacity. The experimental results show that the evaluation results of the proposed method are consistent with the actual evaluation results, the maximum time is 5.3 min, and the satisfaction rate of bearing capacity evaluation results is 94%.
  Keywords: Bayesian network; nature reserves; ecotourism environment; carrying capacity.
  
  
• Evaluation method of ecological quality of landscape architecture considering environmental pollution  
  by Xiaohang Xiang 
  Abstract: To swiftly and precisely evaluate the ecological integrity of landscape design, a methodology that integrates environmental contamination factors into the evaluation of landscape architecture is introduced. Initially, various types of ecological pollution data are analysed, and a set of sensors are used to collect environmental pollution data. Subsequently, based on the collected pollution data and aiming at obtaining ecological pollution information, a monitoring framework for landscape ecological pollution is developed by applying self organising neural networks. At the same time, a hierarchical index system for evaluating the ecological quality of landscape architecture is established. This system uses the multi objective linear weighting method to calculate a comprehensive evaluation index, thus enabling a hierarchical evaluation of the ecological quality of landscape architecture. Empirical findings reveal that the proposed technique achieves an evaluation accuracy of 99.32%, while also reducing the duration required for evaluation.
  Keywords: environmental pollution; landscape architecture; ecological quality evaluation; comprehensive evaluation index.